diff options
| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-02-27 02:26:42 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-03-01 00:01:56 +0900 |
| commit | 4c425570214cac091d9bdcf840b936062fb8da12 (patch) | |
| tree | a8a83c219c46dec073438df0c77031418c662b25 /arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S | |
| parent | 1606b34aa50804227806971dbb6b82ea0bf81f55 (diff) | |
ARM: UniPhier: move SoC sources to mach-uniphier
Move
arch/arm/cpu/armv7/uniphier/* -> arch/arm/mach-uniphier/*
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S b/arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S new file mode 100644 index 0000000000..a793b7c118 --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-pro4/lowlevel_debug.S @@ -0,0 +1,39 @@ +/* + * On-chip UART initializaion for low-level debugging + * + * Copyright (C) 2014 Panasonic Corporation + * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/linkage.h> +#include <asm/arch/sc-regs.h> +#include <asm/arch/sg-regs.h> + +#define UART_CLK 73728000 +#include <asm/arch/debug-uart.S> + +ENTRY(setup_lowlevel_debug) + ldr r0, =SC_CLKCTRL + ldr r1, [r0] + orr r1, r1, #SC_CLKCTRL_CLK_PERI + str r1, [r0] + + init_debug_uart r0, r1, r2 + + /* UART Port 0 */ + set_pinsel 127, 0, r0, r1 + set_pinsel 128, 0, r0, r1 + + ldr r0, =SG_LOADPINCTRL + mov r1, #1 + str r1, [r0] + + ldr r0, =SG_IECTRL + ldr r1, [r0] + orr r1, r1, #1 + str r1, [r0] + + mov pc, lr +ENDPROC(setup_lowlevel_debug) |